An energy-saving low-voltage switchgear with adjustable internal structure
By combining the support frame and the adjustment mechanism, the problem of inaccurate and inflexible installation of electrical components in low-voltage switchgear is solved, enabling precise and flexible adjustment of electrical components and improving the utilization rate of internal space and the convenience of installation in the switchgear.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郑州中都电气有限公司
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-26
AI Technical Summary
In existing low-voltage switchgear, the installation height and horizontal position adjustment of electrical components are limited by the preset position of the clamping holes, resulting in inaccurate and inflexible installation, which affects the accuracy and convenience of installation.
The design combines mounting components and adjustment mechanisms on the support frame. Through the threaded connection of fastening screws and nuts, the height of the mounting plate and mounting frame can be flexibly adjusted. Combined with the cooperation of rubber pads and fastening screws, the stability and accuracy of installation are ensured.
It enables precise and flexible adjustment of electrical component installation, improves the internal space utilization of switch cabinet and the flexibility of electrical component installation, and meets the needs of electrical components of different sizes and weights.
Smart Images

Figure CN224288955U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of low-voltage switchgear technology, and specifically relates to an energy-saving low-voltage switchgear with adjustable internal structure. Background Technology
[0002] Low-voltage switchgear is a device used for the control, protection, and distribution of power systems. Its cabinet contains various electrical components, such as circuit breakers, contactors, fuses, and relays. Different components are placed in different areas inside the cabinet. These components work together to achieve the safe and stable operation of the power system. The modular design of low-voltage switchgear makes its installation and maintenance more convenient. It is widely used in industrial, commercial, and residential fields and is an indispensable and important component of the power system.
[0003] Reference publication number CN222381116U discloses an adjustable high and low voltage switchgear, including a cabinet body. The cabinet body has a hinged door on its front. Two support rods are fixed inside the cabinet body. Each support rod has equidistant slots on its front, and each slot has a locking hole. This utility model, by setting up a cabinet body, support rods, an adjusting rod assembly, mounting plates, a limiting frame, a filter screen, a cathode magnet, and an anode magnet, allows for easy addition or reduction of the number of mounting plates during use of this high and low voltage switchgear. This facilitates the installation of electrical components of different sizes inside the cabinet. Furthermore, the filter screens at the ventilation openings on both sides of the cabinet are connected and fixed using a plug-in method, making it easier to remove the filter screens and clean the dust adhering to their surfaces later.
[0004] In the aforementioned patent, the mounting plate is adjusted by creating locking holes at different heights on the two support rods. However, this adjustment method has obvious limitations. The installation height of the mounting plate is completely restricted by the preset position of the locking holes and cannot be flexibly adjusted according to the actual installation requirements of the electrical components. Specifically, when the required installation height of the electrical components is between the two locking holes, they can only be installed upwards or downwards to the position of the adjacent locking hole. In this case, the electrical components not only deviate from the optimal installation height, but their horizontal wiring positions will also shift, which may affect the overall installation accuracy and ease of use.
[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0006] In view of the problems in related technologies, this utility model proposes an energy-saving low-voltage switchgear with adjustable internal structure to overcome the above-mentioned technical problems existing in the existing related technologies.
[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0008] This utility model is an energy-saving low-voltage switchgear with adjustable internal structure, including a switchgear body, and a cabinet door is hinged to the front of the switchgear body.
[0009] The switch cabinet body has symmetrical support frames fixedly installed on the back side. Each of the two support frames has a mounting slot, and each of the two mounting slots has several mounting parts installed on it.
[0010] The mounting component includes two washers, a fastening screw, and a fastening nut. The two washers are distributed on both sides of the support frame. The two washers have multiple teeth arranged in a circular array at their adjacent ends. The fastening screw and the fastening nut are threaded together. The fastening screw and the fastening nut are respectively distributed on opposite sides of the two washers.
[0011] A connecting plate is provided between each of the two fastening screws and the washer on its corresponding side, and an mounting plate is fixedly installed between the two connecting plates;
[0012] Connecting rods are fixedly installed at the four corners of the bottom of the inner cavity of the switch cabinet body. Multiple adjustment mechanisms are installed on the connecting rods from top to bottom. The multiple adjustment mechanisms are fixed on the connecting rods. Mounting brackets are installed on the adjustment mechanisms at the same height on the four connecting rods.
[0013] Furthermore, the connecting rod has an installation groove, and a rubber pad is installed in the installation groove.
[0014] Furthermore, the adjustment mechanism includes a mounting rod, one side of which is arranged in a parallel manner, and a threaded hole is provided on the parallel side of the mounting rod.
[0015] Furthermore, a fastening screw is installed in the threaded hole, and a bearing rod is fixedly installed at the bottom of the mounting rod.
[0016] Furthermore, the four support rods are fixedly connected to the mounting bracket.
[0017] Furthermore, a base is fixedly installed at the bottom of the switch cabinet body.
[0018] Furthermore, a handle is fixedly installed on the cabinet door.
[0019] This utility model has the following beneficial effects:
[0020] When small electrical components need to be installed, this utility model allows the electrical components to be mounted on a mounting plate. By adjusting the position of the mounting component in the mounting slot, the height of the mounting plate can be flexibly changed, thereby meeting the installation height requirements of the small electrical components. Compared with the traditional method of adjusting the installation height by opening fixing holes in the support rod, this adjustment method is not limited by the preset position of the fixing holes, and can achieve more precise and flexible height adjustment.
[0021] This utility model uses connecting rods fixedly installed at the four corners of the bottom of the switch cabinet body. Adjustment mechanisms are installed on the connecting rods and can be adjusted in height according to actual needs. Multiple adjustment mechanisms are distributed from top to bottom along the connecting rods. By adjusting the position of each adjustment mechanism on the connecting rod, the height of the mounting frame can be adjusted. The adjustment mechanisms of the same height on the four connecting rods are installed together on one mounting frame, ensuring the levelness and stability of the mounting frame. In actual use, the position of the adjustment mechanism can be flexibly adjusted according to the distribution and installation requirements of electrical components. The mounting frame usually installs relatively large and heavy electrical components. By changing the height of the mounting frame, the switch cabinet body can adapt to the installation requirements of electrical components of different sizes, which greatly improves the utilization rate of the internal space of the switch cabinet body and the flexibility of electrical component installation.
[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0025] Figure 2 This is a schematic diagram of the internal structure of the switch cabinet body of this utility model;
[0026] Figure 3 This is a schematic diagram of the first partial structure of the present invention;
[0027] Figure 4 This is a partial structural diagram of the connecting rod and adjusting mechanism of this utility model;
[0028] Figure 5 This is a second partial schematic diagram of the present invention;
[0029] Figure 6This is an overall structural diagram of the mounting component of this utility model.
[0030] The attached diagram lists the components represented by each number as follows:
[0031] 1. Switch cabinet body; 2. Cabinet door; 3. Mounting components; 301. Gasket; 302. Fastening screw; 303. Fastening nut; 304. Tooth; 4. Connecting plate; 5. Mounting plate; 6. Connecting rod; 601. Mounting groove; 602. Rubber pad; 7. Adjustment mechanism; 701. Mounting rod; 702. Threaded hole; 703. Fastening screw; 704. Bearing rod; 8. Mounting bracket; 9. Base; 10. Handle; 11. Support frame; 1101. Mounting groove. Detailed Implementation
[0032] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0033] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0034] Please see Figures 1-6 As shown, this utility model is an energy-saving low-voltage switchgear with adjustable internal structure, including a switchgear body 1. A cabinet door 2 is hinged to the front of the switchgear body 1. A handle 10 is fixedly installed on the cabinet door 2. When it is necessary to install or replace electrical components, the operator holds the handle 10 and rotates the cabinet door 2, so that the cabinet door 2 rotates on the switchgear body 1, and then the switchgear body 1 is opened.
[0035] The switch cabinet body 1 has symmetrical support frames 11 fixedly installed on the back side. Each of the two support frames 11 has a mounting groove 1101. Each of the two mounting grooves 1101 has several mounting parts 3 installed on it. By adjusting the position of the mounting parts 3 in the mounting groove 1101, the height of the mounting plate 5 can be flexibly changed.
[0036] The mounting component 3 includes two washers 301, a fastening screw 302, and a fastening nut 303. The two washers 301 are distributed on both sides of the support frame 11. Each of the two washers 301 has multiple teeth 304 arranged circumferentially at its closest end. The fastening screw 302 and the fastening nut 303 are threaded together. The fastening screw 302 and the fastening nut 303 are respectively distributed on opposite sides of the two washers 301. A connecting plate 4 is provided between each of the two fastening screws 302 and the corresponding washer 301. A mounting plate 5 is fixedly installed between the two connecting plates 4. The two washers 301 on both sides can effectively prevent relative sliding between the washers 301 and the support frame 11, and enhance the stability of the installation of the fastening screws 302, fastening nuts 303 and connecting plate 4. By adjusting the tightness between the fastening screws 302 and fastening nuts 303, the mounting part 3 is released from the support frame 11, thereby adjusting the height of the mounting part 3 on the support frame 11, so as to meet the installation height requirements of small electrical components. Compared with the traditional method of adjusting the installation height by opening a fixing hole in the support rod, this adjustment method is not limited by the preset position of the fixing hole, and can achieve more precise and flexible height adjustment.
[0037] Connecting rods 6 are fixedly installed at the four corners of the bottom of the inner cavity of the switch cabinet body 1. Multiple adjusting mechanisms 7 are installed on the connecting rods 6 from top to bottom. The multiple adjusting mechanisms 7 are fixed on the connecting rods 6. Mounting brackets 8 are installed on the adjusting mechanisms 7 at the same height on the four connecting rods 6. The position of the adjusting mechanisms 7 can be flexibly adjusted according to the distribution and installation requirements of electrical components. The mounting brackets 8 are usually used to install relatively large and heavy electrical components. By changing the height of the mounting brackets 8, the switch cabinet body 1 can adapt to the installation requirements of electrical components of different sizes, which greatly improves the utilization rate of the internal space of the switch cabinet body 1 and the flexibility of electrical component installation.
[0038] In one embodiment, the connecting rod 6 is provided with a mounting groove 601, and a rubber pad 602 is installed in the mounting groove 601.
[0039] The adjustment mechanism 7 includes a mounting rod 701, one side of which is arranged in a parallel manner, and a threaded hole 702 is provided on the parallel side of the mounting rod 701.
[0040] The threaded hole 702 is threaded with a fastening screw 703, and the mounting rod 701 is fixedly mounted with a bearing rod 704 at its bottom.
[0041] The four support rods 704 are fixedly connected to the mounting bracket 8.
[0042] The rubber pad 602 is elastic, increasing the friction between the fastening screw 703 and the connecting rod 6. By tightening or loosening the fastening screw 703, the movement and fixation of the mounting rod 701 in the mounting groove 601 can be controlled, thereby achieving adjustment on the bearing rod 704. By adjusting all four bearing rods 704 at the mounting bracket 8 to a uniform height, the four bearing rods 70 can support the mounting bracket 8, forming a stable support structure. This provides reliable support for the installation of relatively large and heavy electrical components. Furthermore, by changing the height of the mounting bracket 8, the switch cabinet body 1 can adapt to the installation requirements of electrical components of different sizes, greatly improving the utilization rate of the internal space of the switch cabinet body 1 and the flexibility of electrical component installation.
[0043] In one embodiment, for the switch cabinet body 1, a base 9 is fixedly installed at the bottom of the switch cabinet body 1, and the base 9 supports the entire switch cabinet body 1.
[0044] Working principle: When the mounting plate 5 needs to be installed, first place the two washers 301 on both sides of the support frame 11, with the multiple teeth 304 of the two washers 301 located on both sides of the support frame 11. Then, pass the teeth of the fastening screw 302 through the connecting plate 4, one washer 301, the mounting groove 1101, and the other washer 301 in sequence. Next, screw the fastening nut 303 onto the fastening screw 302, but do not tighten it completely. Then, move the entire mounting component 3 on the support frame 11 to the desired height for installing the mounting plate 5. Finally, tighten the fastening screw 302 onto the fastening nut 303. By rotating the fastening nut 303, the fastening screw... 302 applies pressure inward to fix the connecting plate 4 to the support frame 11. A connecting plate 4 is also fixed at the same height on another support frame 11 in the same way. Finally, the two ends of the mounting plate 5 are fixed to the two connecting plates 4 at the same height with screws. The mounting plate 5 provides a direct mounting platform for various small electrical components. When the position of the mounting plate 5 needs to be adjusted, simply loosen the fastening screws 302 and fastening nuts 303 at both ends of the mounting plate 5 so that the mounting part 3 can slide in the vertical direction of the support frame 11 to adjust the position of the mounting part 3 in the mounting groove 1101, thereby flexibly changing the height of the mounting plate 5.
[0045] When the height of the mounting bracket 8 needs to be adjusted, loosen the fastening screw 703, causing it to move away from the mounting groove 601. The fastening screw 703 will then no longer be in contact with the rubber pad 602 inside the mounting groove 601, and the friction between the fastening screw 703 and the connecting rod 6 will disappear, allowing the mounting rod 701 to move freely vertically on the connecting rod 6. After the bearing rod 704 is adjusted to the target height, tighten the fastening screw 703, pushing it along the threaded hole 702 towards the mounting groove 601. Its insertion part gradually squeezes the rubber pad 602 in the mounting groove 601. Since the rubber pad 602 is elastic, it will deform after being squeezed, increasing the friction between the fastening screw 703 and the connecting rod 6. Finally, the mounting rod 701 is fixed to the connecting rod 6 by the fastening screw 703, so that the bearing rod 704 can be installed at any height on the connecting rod 6. Then, the four corners of the mounting bracket 8 are fixed to the four bearing rods 704 by screws, forming a stable support structure, ensuring that the mounting bracket 8 can be stably maintained at the adjusted height position.
[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0047] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An energy-saving low-voltage switchgear with adjustable internal structure, comprising a switchgear body (1), characterized in that: The switch cabinet body (1) is hinged to a cabinet door (2) on the front. The switch cabinet body (1) has symmetrically fixed support frames (11) on its back side. Each of the two support frames (11) has a mounting slot (1101) and a number of mounting parts (3) are installed on each of the two mounting slots (1101). The mounting component (3) includes two washers (301), a fastening screw (302), and a fastening nut (303). The two washers (301) are distributed on both sides of the support frame (11). The two washers (301) have multiple teeth (304) arranged in a circular array at their close ends. The fastening screw (302) and the fastening nut (303) are threaded together. The fastening screw (302) and the fastening nut (303) are respectively distributed on opposite sides of the two washers (301). A connecting plate (4) is provided between each of the two fastening screws (302) and the washer (301) on the corresponding side, and an mounting plate (5) is fixedly installed between the two connecting plates (4). Connecting rods (6) are fixedly installed at the four corners of the bottom of the inner cavity of the switch cabinet body (1). Multiple adjustment mechanisms (7) are installed on the connecting rods (6) from top to bottom. The multiple adjustment mechanisms (7) are fixed on the connecting rods (6). Mounting brackets (8) are installed on the adjustment mechanisms (7) at the same height on the four connecting rods (6).
2. The adjustable internal structure energy-saving low-voltage switchgear according to claim 1, characterized in that, The connecting rod (6) has an installation groove (601) and a rubber pad (602) is installed in the installation groove (601).
3. The adjustable internal structure energy-saving low-voltage switchgear according to claim 1, characterized in that, The adjustment mechanism (7) includes a mounting rod (701), one side of which is arranged in a parallel manner, and a threaded hole (702) is provided on the parallel side of the mounting rod (701).
4. The adjustable internal structure energy-saving low-voltage switchgear according to claim 3, characterized in that, The threaded hole (702) is threaded with a fastening screw (703), and the bottom of the mounting rod (701) is fixedly mounted with a bearing rod (704).
5. The adjustable internal structure energy-saving low-voltage switchgear according to claim 4, characterized in that, The four support rods (704) are fixedly connected to the mounting bracket (8).
6. The adjustable internal structure energy-saving low-voltage switchgear according to claim 1, characterized in that, The bottom of the switch cabinet body (1) is fixedly installed with a base (9).
7. The adjustable internal structure energy-saving low-voltage switchgear according to claim 1, characterized in that, A handle (10) is fixedly installed on the cabinet door (2).